Quantitative Aptitude - Arithmetic Ability Questions

Two points P and Q are at the distance of x and y (where y > x) respectively from the base of a building and on a straight line. If the angles of elevation of the top of the building from points P and Q are complementary, then what is the height of the building?

In the following question, select the odd letters from the given alternatives.

Select the odd letters from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

If 31% of an electricity bill is deducted, Rs 1794 is still to be paid. How much was the original bill amount?

The angle of elevation of the top of a tower from a point A on the ground is 30°. On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60°. The height of the tower in meters is

Find two numbers whose sum is 29 and the product is 100.

If a - b = 2 and ab = 15, then what is the value of a3- b3?